EP1099396A1 - Einziehbare Beinstütze für einen Sitz - Google Patents

Einziehbare Beinstütze für einen Sitz Download PDF

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Publication number
EP1099396A1
EP1099396A1 EP00402971A EP00402971A EP1099396A1 EP 1099396 A1 EP1099396 A1 EP 1099396A1 EP 00402971 A EP00402971 A EP 00402971A EP 00402971 A EP00402971 A EP 00402971A EP 1099396 A1 EP1099396 A1 EP 1099396A1
Authority
EP
European Patent Office
Prior art keywords
drawer
legrest
seat
sub
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00402971A
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English (en)
French (fr)
Other versions
EP1099396B1 (de
Inventor
Roger Prieur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1099396A1 publication Critical patent/EP1099396A1/de
Application granted granted Critical
Publication of EP1099396B1 publication Critical patent/EP1099396B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/995—Lower-leg-rests, e.g. calf-rests

Definitions

  • the present invention relates to a leg rest adapted to be mounted under the seat of a seat and to pass from a retracted position in which said legrest allows the seat user to sit on the floor and a deployed position in which the legrest extends in the extension of the seat to receive the user's legs in a relaxed position.
  • a seat comprising a legrest consisting of (a) a tube 21 having an open distal end and an end proximal to the vicinity of which said tube is mounted pivoting under the seat, one face of said tube, called to be oriented upwards in the deployed position legrest, supporting a 6 '' cushion; and (b) a rod 22 slidably mounted in said tube between a position in which it is retracted into the latter and a position in which it projects out of said tube through the distal end thereof, said rod supporting a 6 '' cushion on one side called to be oriented upwards in the deployed position of the legrest.
  • proximal and distal are respectively used to distinguish a room or area closer to the seat of the seat of a room or area more distant.
  • the 6 '' cushion depends on said sliding rod is exposed to view and attached to the 6 '' cushion depending on the legrest tube, then that in the deployed state these two cushions move apart one of the other leaving between them a void of length substantially equal to that of the 6 '' 'cushion itself (see Figure 1 of WO 97/00035). It follows that the legs of the user is not supported on their entire length, which is obviously a source of discomfort.
  • the proximal end of the 6 '' 'cushion rests, in the deployed position of the legrest, on the end distal of tube 6 so that the maximum elongation possible of the legrest is clearly equal to the distance on which the 6 '' cushion can slide while keeping a support on the tube 6, that is to say roughly its own length which, as we can see, represents approximately 50% the length of the tube 21.
  • this tube is limited by the guard on the floor of the seat cushion, which is substantially standard and around 27-30 cm.
  • the present invention has to provide a legrest mechanism which significantly improves user comfort by providing continuous leg support for the user and over a longer length.
  • the flexible linings are formed a cushion, possibly supported by a set of straps, or a canvas woven with threads interwoven thermoplastics such as that sold under the BATYLINE brand.
  • the first flexible lining can, for example, be made up of a cushion and the second flexible lining of such a canvas.
  • the second flexible lining leaves available, for the first garnish, the entire surface of the box and, on the other hand, occupies all the surface of the drawer. It follows that in the deployed position the drawer trim is placed at the end of the box lining, without uncomfortable vacuum between them.
  • the extraction of the drawer is not limited by the need to keep at the second trim a support on the face of the box as would be the case if the structure was similar to that of WO 97/00035. he it follows that the lengthening of the legrest can reach about 80% of the box length or, expressed otherwise, almost twice the ground clearance of the seat, about 55 cm. It can even reach twice and half the ground clearance if there is a sub-drawer, such as indicated below.
  • the legrest according to the invention comprises a sub-drawer slidably mounted in said drawer, as the drawer is itself mounted sliding in said box, which drawer then forms a sub-cabinet for the sub-drawer.
  • the face of said sub-drawer called to be oriented upwards in the deployed position of the legrest, has a third soft pad substantially over its entire surface, and said third flexible lining is retracted into the drawer at the same time that said sub-drawer and comes, in the deployed position of legrest, in continuation of said second flexible lining of said drawer, substantially without discontinuity.
  • the legrest according to the invention forms a compact block of which the only visible part is the upper side of the box (with its flexible trim) at right of the free edge of the seat, all or the almost all of the drawer and any sub-drawer being hidden inside the box.
  • the distal end of the drawer or, where applicable, that of said sub-drawer is provided with at least one caster, and preferably two casters. So the end of the legrest being deployment rolls on the ground, which is accompanied by a pivoting of the box on the seat frame.
  • the box is advantageously mounted on a fixing frame having two integral uprights a cross member, said cross member being pivotally mounted on the seat frame and forming a pivot axis for said box.
  • the legrest according to the invention comprises a motor means adapted to exercise, directly or indirectly, on the above-mentioned framework, a push towards the deployment of the legrest and, better still, the drive means is a jack pneumatic.
  • the known legrest comprises, on the one hand, a pair of triangular fittings 1, mounted pivoting on the seat frame by one of the angles of the fittings, with interposition between fittings 1 of a plate 9 cushion support, and, on the other hand, a pair of slides 7 mounted on an axis depending on another angle fittings, with interposition of a plate 13 support cushion between the wings.
  • a connecting rod 17 causes, under the effect of a driving force, the deployment of the structure retracted and vice versa.
  • the use of a pneumatic cylinder is not possible since such a jack could potentially allow deployment but not re-retraction, of the leg rest.
  • a pneumatic cylinder as opposed to an electric actuator is possible, according to the invention, by due to the low force required to operate the leg rest.
  • a pneumatic cylinder operated by a single lever is considerably less expensive than an electric actuator and its remote control and, on the other hand, on a psychological level, a seat fitted with a such a cylinder is better received by the consumer, especially young, that a remote-controlled electric cylinder, the seats moved electrically having, to this day still, a connotation of seats for the disabled.
  • the cylinder could be an electric actuator.
  • the user unlocks, which releases the box, then it exerts a slight effort with the legs on the legrest: it the pivoting of the box on the seat frame follows, the wheels of the drawer or the sub-drawer making contact again with the ground. As they roll in, the drawer and sub-drawer retracts into the box which resumes its position to the right of the edge of the seat cushion, stadium to which the user relocks the legrest.
  • the unlocking and relocking in question are those of the cylinder.
  • the distal end of the drawer and / or, if applicable, that of the sub-drawer can possibly serve as an anchor for one of the ends of a return spring with the other end is anchored on the proximal end of the box.
  • This spring stretched when the legrest is deployed, tends to bring back the drawer, and if necessary the sub-drawer, retracted position.
  • the upper face of the box and / or drawer and / or, if applicable if necessary, the sub-drawer is open and topped with a set of straps suitable for receiving a cushion.
  • the box, the drawer and any sub-drawer will advantageously be made of sheet metal, wood or aluminum, the drawer and any sliding sub-drawer in aluminum slides.
  • FIG. 1a-1d we see a seat comprising a seat 1, a backrest 2 and a lever 3 of backrest tilt control.
  • This seat has a legrest generally designated by 4 which takes the form general of a parallelepiped block.
  • this block consists of a box 5, lined with a cushion 6 and secured to a fixing frame composed of two uprights square with uneven branches.
  • the short branches 7 of brackets are secured to a cross member 8 mounted swivel on the chassis 9 of the seat.
  • Long branches are, in turn, secured to the underside of the box 5 so the box can pivot around the axis formed by the cross 8.
  • a carriage 13 whose side faces cooperate with a slide 14, the carriage 13 itself receiving, sliding, rails 15 fixed to the lateral faces of the drawer 11.
  • a pair of rollers 16 is fixed at the end of the drawer 11.
  • a lever 20 controls, in a manner known per se, the deployment of the jack 17.
  • legrest When not in use, the legrest occupies the position shown in Figure 1a.
  • the user unlocks the cylinder 17 by lowering the lever 20, according to arrow F, jack whose the rod comes out causing the frame to pivot 7.10 around cross-member 8, lever which it keeps lowered throughout the desired movement.
  • the legrest Under the combined effect of the thrust of the jack and gravity, the legrest is deploys ( Figure 1b), rolling on the ground on its wheels 16. This deployment continues on its own until the position shown in Figure 1c. At this point, the push exerted by the jack 7 raises the legrest and makes it move to the position shown in Figure 1d. The user then locks the legrest in position in releasing the lever 20. It is understood that the user can release lever 20 before the legrest has reaches the position of figure 1e, if he wishes the legrest occupies an intermediate position between that of Figure 1d and that of Figure 1e.
  • the user unlocks the jack 17 and exerts pressure, by means of his legs, on the legrest. This one pivots around of the cross member 8 and the rollers 16 resume contact with the ground. The user just has to push back all of a heel pressure and relock the cylinder 7 once the legrest has returned to the position shown in Figure 1a.
  • the block comprises, as before, a box 105 and a drawer 111, but the latter itself serves as a caisson (sub-caisson) for a sub-drawer fitted with castors 116.
  • Rails, 113 and 22 respectively, are provided on the faces corresponding sides of drawer 111 and sub-drawer 21 and which engage with cooperating means provided on the internal face opposite, respectively, the box 105 and sub-box 111.
  • This arrangement further increases the length of legrest.
  • the upper side of the drawer and that of the sub-drawer are open and tight straps 23 adapted to receive the cushions 112 and 24.
  • Such straps provide more flexible support sensitive lower part of the calf and ankle, which will rest on cushions necessarily thin considering the need to fit into the caisson and sub-caisson.
  • the straps and their cushion could be replaced by a stretched canvas such as that available commercially under the BATYLINE brand.
  • a spring 25 can be anchored by one of its ends, on the distal face 26 of the casing 105 and, by its other end, on the distal face 27 of the sub-drawer 21. This spring, optional, facilitates the return of the sub-drawer 11 in drawer / sub-unit 111 and that of drawer 111 in box 105.
  • the structure of the legrest according to the invention is simple and robust and economical, that it is of use easy, and that it offers increased comfort to the user.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Passenger Equipment (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP00402971A 1999-11-05 2000-10-26 Einziehbare Beinstütze für einen Sitz Expired - Lifetime EP1099396B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9913893A FR2800590B1 (fr) 1999-11-05 1999-11-05 Repose-jambes escamotable pour siege
FR9913893 1999-11-05

Publications (2)

Publication Number Publication Date
EP1099396A1 true EP1099396A1 (de) 2001-05-16
EP1099396B1 EP1099396B1 (de) 2005-05-11

Family

ID=9551767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00402971A Expired - Lifetime EP1099396B1 (de) 1999-11-05 2000-10-26 Einziehbare Beinstütze für einen Sitz

Country Status (4)

Country Link
EP (1) EP1099396B1 (de)
AT (1) ATE295099T1 (de)
DE (1) DE60020053T2 (de)
FR (1) FR2800590B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1269893A1 (de) * 2001-06-29 2003-01-02 Günter Veith Sitz- und/oder Liegemöbel mit Beinabstützung
WO2003074322A1 (de) * 2002-03-04 2003-09-12 Daimlerchrysler Ag Fahrzeugsitz mit unterschenkelstütze
FR2867364A1 (fr) * 2004-03-09 2005-09-16 Roger Prieur Siege a dossier et assise independamment inclinables et a profondeur d'assise reglable
GB2433433A (en) * 2005-12-23 2007-06-27 British Airways Plc Aircraft passenger seat with secondary support surface
WO2007072045A3 (en) * 2005-12-23 2007-11-29 British Airways Plc Aircraft passenger seat
DE102010012767A1 (de) * 2010-03-25 2011-09-29 Audi Ag Vorrichtung zur Auflage der Füße eines Passagiers eines Kraftfahrzeugs
EP2514340A1 (de) * 2009-12-18 2012-10-24 Percival Lafer Verbesserungen der stützstruktur für beine und füsse an lehnstühlen
CN103692942A (zh) * 2013-12-10 2014-04-02 长春富维—江森自控汽车饰件系统有限公司 汽车座椅的可多级调节和自动回位的脚踏板翻折机构
CN108725282A (zh) * 2017-04-21 2018-11-02 丰田纺织株式会社 交通工具座椅用腿脚支撑装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011112809A1 (de) * 2011-09-07 2013-03-07 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Vorrichtungen zur Sitztiefenverstellung eines Kraftfahrzeugsitzes
US11167852B1 (en) 2020-07-29 2021-11-09 B/E Aerospace, Inc. Translating, locking, and rotating leg rest mechanism

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558830A (de) *
JPH04224711A (ja) * 1990-12-27 1992-08-14 Aisin Seiki Co Ltd レッグレスト装置
US5352020A (en) * 1992-07-10 1994-10-04 Weber Aircraft, Inc. Hydraulic extendable legrest
WO1995027422A1 (fr) 1994-04-12 1995-10-19 Pierre Moine Dispositif de repose-jambes pour siege ou fauteuil
WO1997000035A1 (en) 1995-06-16 1997-01-03 Terje Steinar Olsen Chair arrangement
WO1999025222A1 (en) * 1997-11-17 1999-05-27 Compact S.R.L. Armchair with an improved power-driven footrest

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7727031U1 (de) * 1977-09-01 1977-12-08 Max Meier Gmbh + Co Metallwarenfabrik, 7585 Lichtenau Gurtbandrahmen fuer sitz- und liegemoebel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558830A (de) *
JPH04224711A (ja) * 1990-12-27 1992-08-14 Aisin Seiki Co Ltd レッグレスト装置
US5352020A (en) * 1992-07-10 1994-10-04 Weber Aircraft, Inc. Hydraulic extendable legrest
WO1995027422A1 (fr) 1994-04-12 1995-10-19 Pierre Moine Dispositif de repose-jambes pour siege ou fauteuil
WO1997000035A1 (en) 1995-06-16 1997-01-03 Terje Steinar Olsen Chair arrangement
WO1999025222A1 (en) * 1997-11-17 1999-05-27 Compact S.R.L. Armchair with an improved power-driven footrest

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 572 (C - 1010) 11 December 1992 (1992-12-11) *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1269893A1 (de) * 2001-06-29 2003-01-02 Günter Veith Sitz- und/oder Liegemöbel mit Beinabstützung
WO2003074322A1 (de) * 2002-03-04 2003-09-12 Daimlerchrysler Ag Fahrzeugsitz mit unterschenkelstütze
FR2867364A1 (fr) * 2004-03-09 2005-09-16 Roger Prieur Siege a dossier et assise independamment inclinables et a profondeur d'assise reglable
WO2005087051A3 (fr) * 2004-03-09 2005-11-24 Roger Prieur Siege a dossier et assise independamment inclinables et a profondeur d'assise reglable
US8616643B2 (en) 2005-12-23 2013-12-31 British Airways Plc Aircraft passenger seat
GB2433433A (en) * 2005-12-23 2007-06-27 British Airways Plc Aircraft passenger seat with secondary support surface
WO2007072045A3 (en) * 2005-12-23 2007-11-29 British Airways Plc Aircraft passenger seat
GB2448835A (en) * 2005-12-23 2008-10-29 British Airways Plc Aircraft passenger seat
GB2448835B (en) * 2005-12-23 2010-12-29 British Airways Plc Aircraft passenger seat
EP2514340A1 (de) * 2009-12-18 2012-10-24 Percival Lafer Verbesserungen der stützstruktur für beine und füsse an lehnstühlen
EP2514340A4 (de) * 2009-12-18 2013-06-05 Percival Lafer Verbesserungen der stützstruktur für beine und füsse an lehnstühlen
DE102010012767A1 (de) * 2010-03-25 2011-09-29 Audi Ag Vorrichtung zur Auflage der Füße eines Passagiers eines Kraftfahrzeugs
CN103692942A (zh) * 2013-12-10 2014-04-02 长春富维—江森自控汽车饰件系统有限公司 汽车座椅的可多级调节和自动回位的脚踏板翻折机构
CN103692942B (zh) * 2013-12-10 2016-06-01 长春富维—江森自控汽车饰件系统有限公司 汽车座椅的可多级调节和自动回位的脚踏板翻折机构
CN108725282A (zh) * 2017-04-21 2018-11-02 丰田纺织株式会社 交通工具座椅用腿脚支撑装置
CN108725282B (zh) * 2017-04-21 2020-09-08 丰田纺织株式会社 交通工具座椅用腿脚支撑装置

Also Published As

Publication number Publication date
DE60020053D1 (de) 2005-06-16
DE60020053T2 (de) 2006-01-19
EP1099396B1 (de) 2005-05-11
FR2800590A1 (fr) 2001-05-11
FR2800590B1 (fr) 2001-12-28
ATE295099T1 (de) 2005-05-15

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